Tip- SATA drive problems may be due to the cable

I've recently had problems with two SATA drives that were not recognized by the system and the problem is both cases turned out to be a faulty SATA cable.

These have got to be some of the worst designed connectors I've seen. Two of the four I've used have failed. The connector is very fragile and will spread open or crack along the side and not make contact if they are bent or bumped when attached to the drive or MB.